Shop our full range of framesets from Factor Bikes, which showcases the outstanding O2 and One models, built on the back of an enduring commitment to innovation to offer unrivalled speed & performance.

Even more comfort and improved pressure distribution for the soft tissue areas. Compared to the SMC3’s softer structure and additional volume in the seat cushion. Optimal pressure relief in the perineum area by 9 mm deep relief channel. An extra large seat effectively reduces pressure peaks and optimally distributes the pressure on the sit bones and pubic bones. Features a flat seat for dynamic sitting in different positions without tilting effects – unlike step saddles. SMC4 Comp Gel and SMC4 Sport Gel with gel pads for maximum comfort.

Shell: Nylon GFRP

Rails: CroMo

Cover: DuraSkin

Padding: Orthopaedic Comfort Foam

Weight: 300g (S), 305g (M)

WESTBROOK CYCLES DELIVERY NOTICE

UK DeliveriesFREE when you spend over £50.00 in a single orderOtherwise it's typically £3.99 per orderDelivery should be expected between 2-3 working days unless stated on product page.

Worldwide Deliveries*Approximately 4-10 working days depending on countryvia Parcelforce Signed Delivery (fully traceable service). Please add items to the basket to calculate delivery for desired country.

If your country isn't listed for delivery at checkout please contact us.

Delivery of BikesWe ship all our bikes free of charge within the United Kingdom (excl. Jersey and the Channel Islands at this time) and all our bikes come pre-assembled with just a few tweaks required (Please see our Bike Build Instruction page for details of assembly required).

All our bikes undergo a safety check before being re-boxed for shipping which can during busy periods take a little longer to complete so whilst we aim to ship all our bikes within two working days of the order please allow for additional time for this process.

Signature RequiredAll our consignments irrespective of the carrier require a signature upon delivery, deliveries are typically made between 08:00 and 18:00 so please bare this in mind when choosing a delivery address.

Package RecyclingWe do try when possible to reuse packaging from our own suppliers in order to send purchased items to our customers, we ask if the packaging is still in good condition after you've received your goods then please try to use it again or recycle if not possible.